Question

cos 60×cos 30+sin60×sin30​

Answer 1

Step-by-step explanation:

we know that,

cos60=1÷2

cos30=√3÷2

sin60=√3÷2

sin30=1÷2

now, as per the given question substitute the values,

= (1/2)(√3/2)+(√3/2)(1/2)

take √3/2 as common

= √3÷2[1/2+1/2]

=√3÷2(1)

=√3÷2

this is the correct answer. please make brilliant if you like